A surgical instrument includes a housing, a handle, an elongated shaft, an end effector assembly, a drive assembly, and an extension depending from the handle. The extension includes a proximal surface having a first proximal cam portion defining a first angle with respect to the longitudinal axis and a second proximal cam portion defining a second angle with respect to the longitudinal axis. Initial actuation of the handle from a non-actuated position causes the first proximal cam portion to contact the first portion of the drive assembly causing a first movement of the at least one jaw member, and a subsequent actuation of the handle causes the second proximal cam portion to contact the first portion of the drive assembly causing a second movement of the at least one jaw member.

A manipulator adapted to grasp and draw tissue comprises first and second arms having proximal ends and distal ends separated by a distance. First and second grasping surfaces each connected to and extending from respective distal ends of the first and second arms are biased toward each other by a respective spring force. When the first and second arms are actuated to reduce the distance, the manipulator is configured such that tissue arranged between the first and second grasping surfaces resist actuation of the first and second arms. The first and second arms are further actuatable to overcome the spring force of the first and second grasping surfaces so that the first and second grasping surfaces pivot at respective pivot points such that the distance between the distal ends of the first and second arms is reduced.

A retrieval device is provided for retrieving stones, calculi, and other objects from a body. The device allows for a retrieval basket to be articulated and extended simultaneously. The device also allows for the basket to be articulated and retracted simultaneously. The device comprises a body, an articulator movably connected to the body, a first wire and a second wire having distal ends, and a tool formed by the distal ends of the first wire and the second wire.

Surgical clip appliers are provided and include a housing; at least one handle pivotably connected to the housing; a channel assembly extending distally from the housing; a clip carrier disposed within the channel assembly and defining a channel and a plurality of windows therein; and a plurality of clips slidably disposed within the channel of the clip carrier. The surgical clip appliers further include a drive channel reciprocally disposed within at least one of the housing and the channel assembly; a wedge plate reciprocally disposed within the channel assembly; a pusher bar reciprocally positioned within the housing and the channel assembly; and a motion multiplier system having a plurality of linkage members configured to distally move the pusher bar by an incremental amount upon an initial actuation of the handles, and configured to proximally move the pusher bar and the wedge plate subsequent to the initial actuation of the handles.

A surgical instrument is disclosed which comprises a tissue clamping system, a staple firing system, and a tissue cutting system. The systems of the surgical instrument can co-operate with one another to prevent the systems from being operated out of order, and/or prevent the systems from being operated in an undesirable order.

A surgical instrument is disclosed which comprises a staple firing system and a tissue cutting system. The surgical instrument is configured to permit a surgeon to elect whether to actuate the tissue cutting system after the staple firing system has been actuated.

A surgical instrument is disclosed which comprises a staple firing system and a tissue cutting system. In various instances, the surgical instrument further comprises a lockout configured to prevent the retraction of the staple firing system until the tissue cutting system has been completely actuated. The surgical instrument can also comprise a bypass configured to deactivate the lockout.

A manipulator adapted to grasp and draw tissue comprises first and second arms having proximal ends and distal ends separated by a distance. First and second grasping surfaces each connected to and extending from respective distal ends of the first and second arms are biased toward each other by a respective spring force. When the first and second arms are actuated to reduce the distance, the manipulator is configured such that tissue arranged between the first and second grasping surfaces resist actuation of the first and second arms. The first and second arms are further actuatable to overcome the spring force of the first and second grasping surfaces so that the first and second grasping surfaces pivot at respective pivot points such that the distance between the distal ends of the first and second arms is reduced.

A bone clamp (1, 200, 300) for use in fixation of a fractured bone, or prevention of fracture of a bone, the clamp (1, comprising a pair of handles (2a, 2b) joined together at a pivot point (5), the handles (2a, 2b) each having an arcuate jaw (4a 4b), the arcuate jaws (4a, 4b) comprising a first end (7a, 7b) having an opening at a proximal end (12a, 12b) of the jaw (4a, 4b) in communication with a second end (8a, 8b) having an opening at a distal end (14a, 14b) of the jaw (4a, 4b), the first end (7a, 7b) and second end (8a, 8b) in communication via a channel (6a, 6b), in which the channel (6a, 6b) is configured to accommodate a cable, a wire, a suture, a band or other suitable flexible material, and wherein the channel (6a, 6b) is an open channel.